I'm also getting the incorrect EC block id message as well as Illegal State Exceptions when updating the network listener key. This is 2.0.11 compiled from the BitBucket source.

It seems that html/www/js/nrs.constants.js is overwriting the id of LAST_KNOWN_BLOCK at height 6000 with that of genesis block at height 0, but nobody else seems to care...'LAST_KNOWN_BLOCK': { id: "5659382559739578917", height: "6000" }

1. While connected to e.g. ARDOR chain i cant see my other coin balance, it just states all zeroes and in order to check my e.g. IGNIS balance i need to switch to IGNIS chain. Is it going to be fixed or is this by design? 2. Also what is the purpose of removing second side of exchange from one screen? Like we only have now Buy IGNIS with ARDR when it was pretty convinient to see Sell Orders and Buy Orders together.

Temporary fix: edit <ardor-directory>/html/www/js/nrs.constants.js and add '//' to the start of line 122

Thanks, but doesn't work for me. Even after commenting this line and restarting Ardor, I'm still getting the ecBlockId error.I understand that this could happen on a testnet, but in a production version of a system with $1.6bn market cap?

Temporary fix: edit <ardor-directory>/html/www/js/nrs.constants.js and add '//' to the start of line 122

Thanks, but doesn't work for me. Even after commenting this line and restarting Ardor, I'm still getting the ecBlockId error.I understand that this could happen on a testnet, but in a production version of a system with $1.6bn market cap?

Edit: Deleting and re-downloading the blockchain didn't help either.

Did you clear the browser cache (CTRL+F5 for Chrome, don't know about others) and restart the node? I had the problem using the web browser and also using the light client. It fixed the problem in both cases.

Edit: You also need to delete nrs.constants.js.gz if it exists (this is the compressed version of the file)

Did you clear the browser cache (CTRL+F5 for Chrome, don't know about others) and restart the node? I had the problem using the web browser and also using the light client. It fixed the problem in both cases.

Edit: You also need to delete nrs.constants.js.gz if it exists (this is the compressed version of the file)

It was corrected in the new version, everything works there so I didn't try your solution. Anyway, thanks!